title: Critical pulmonary stenosis: challenges following surgical correction.
abstract: A 20-day-old girl was diagnosed with critical pulmonary valvular stenosis with patent ductus arteriosus (PDA). She underwent surgical pulmonary valvotomy and infundibular resection. A trial snaring of the PDA resulted in significant systemic desaturation, and the PDA was left undivided. A continuous infusion of prostaglandin was used to keep the PDA open for the next 8 days. The PDA acted as a "natural systemic-to-pulmonary shunt" to provide pulmonary blood flow until right ventricular compliance and function improved. The various causes of persistent desaturation following pulmonary valvotomy are discussed.
authors.affiliation: Department of Anaesthesia and Intensive Care, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
authors.forename: Bhupesh
authors.initials: B
authors.lastname: Kumar
authors.forename: G D
authors.initials: GD
authors.lastname: Puri
authors.forename: Anju
authors.initials: A
authors.lastname: Singh
authors.forename: S S
authors.initials: SS
authors.lastname: Rana
keywords: critical pulmonary stenosis; desaturation; postcorrection; prostaglandin E1